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 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2017 by Hitachi Vantara : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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 * See the License for the specific language governing permissions and
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package org.pentaho.metaverse.api.analyzer.kettle.step;

import org.apache.commons.lang.ArrayUtils;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.trans.step.BaseStepMeta;
import org.pentaho.metaverse.api.analyzer.kettle.DatabaseConnectionAnalyzer;

import java.util.Arrays;
import java.util.List;

/**
 * User: RFellows Date: 3/6/15
 */
public class StepDatabaseConnectionAnalyzer extends DatabaseConnectionAnalyzer<BaseStepMeta> {

  @Override
  public List<DatabaseMeta> getUsedConnections( BaseStepMeta meta ) {
    if ( meta != null ) {
      DatabaseMeta[] dbMetas = meta.getUsedDatabaseConnections();
      List<DatabaseMeta> databaseMetas = null;
      if ( !ArrayUtils.isEmpty( dbMetas ) ) {
        databaseMetas = Arrays.asList( dbMetas );
      }
      return databaseMetas;
    } else {
      return null;
    }
  }

}
